The Big Bang Theory Music
The Big Bang Theory season 12 poster

The Big Bang Theory season 12 episode 3 soundtrack

The Procreation Calculation, 3 songs

The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Penny and Leonard talk about starting a family. Raj explores an arranged marriage.

  • Smooth Operator (Single Version) — Sade
    Howard and Bernadette discuss their friends not taking their advice, when music comes on from Stewart's room; (repeat) Howard and Bernadette kiss when music comes on again.
  • Work B**ch — Britney Spears
    Howard turns on music to tune out Stewart's music only for Neil to begin crying.
  • Batman Theme — Neal Hefti
    Leonard and Penny drive off in the Batmobile.

Theme Song

Big Bang Theory Theme
Barenaked Ladies